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https://www.readbyqxmd.com/read/28818664/lactate-dehydrogenase-a-is-indispensable-for-vascular-smooth-muscle-cell-proliferation-and-migration
#1
Ji-Hyun Kim, Kwi-Hyun Bae, Jun-Kyu Byun, Sungwoo Lee, Jung-Guk Kim, In Kyu Lee, Gwon-Soo Jung, You Mie Lee, Keun-Gyu Park
The proliferation and migration of vascular smooth muscle cells (VSMCs) have been implicated in the pathogenesis of atherosclerosis. Increased aerobic glycolysis is a key feature of cellular phenotypes including cancer and immune cells. However, the role of aerobic glycolysis in the atherogenic phenotype of VSMCs remains largely unknown. Here, we investigated the role of lactate dehydrogenase-A (LDHA), which is a key enzyme for glycolysis, in the proliferation and migration of VSMCs. Activation of primary rat VSMCs with fetal bovine serum (FBS) or platelet-derived growth factor (PDGF) increased their proliferation and migration, glycolytic activity, and expression of LDHA...
August 14, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28818608/potential-resistance-mechanisms-revealed-by-targeted-sequencing-from-lung-adenocarcinoma-patients-with-primary-resistance-to-epidermal-growth-factor-receptor-egfr-tyrosine-kinase-inhibitors-tkis
#2
Jia Zhong, Lei Li, Zhijie Wang, Hua Bai, Gai Fei, Jian Chunduan, Jun Zhao, Minglei Zhuo, Yuyang Wang, Shuhang Wang, Wanchun Zang, Meina Wu, Tongtong An, Guanhua Rao, Jie Wang
BACKGROUND: EGFR-TKIs have greatly improved the prognosis of lung adenocarcinoma. However, approximately 5%-10% lung adenocarcinoma patients with EGFR sensitive mutations have primary resistance to EGFR-TKIs treatment. The underlying mechanism is unknown. METHODS: This study used next-generation sequencing (NGS) to explore the mechanisms of primary resistance by analyzing 11 patients with primary resistance and 11 patients sensitive to EGFR-TKIs. NGS targeted sequencing was performed on the Illumina X platform for 483 cancer-related genes...
August 14, 2017: Journal of Thoracic Oncology
https://www.readbyqxmd.com/read/28815573/impact-of-adenoma-detection-on-the-benefit-of-faecal-testing-versus-colonoscopy-for-colorectal-cancer
#3
Reinier G S Meester, Chyke A Doubeni, Ann G Zauber, Marjolein van Ballegooijen, Douglas A Corley, Iris Lansdorp-Vogelaar
Colonoscopy quality, as measured by adenoma detection rates, varies widely across providers and is inversely related with patients' post-colonoscopy cancer risk. This has unknown consequences for the benefits of faecal immunochemical testing (FIT) versus primary colonoscopy screening for colorectal cancer. Using an established microsimulation model, we predicted the lifetime colorectal cancer incidence and mortality benefits of annual FIT versus ten-yearly colonoscopy screening at differing ADR levels (quintiles; averages 15...
August 17, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28811348/a-critical-role-of-glutamine-and-asparagine-%C3%AE-nitrogen-in-nucleotide-biosynthesis-in-cancer-cells-hijacked-by-an-oncogenic-virus
#4
Ying Zhu, Tingting Li, Suzane Ramos da Silva, Jae-Jin Lee, Chun Lu, Hyungjin Eoh, Jae U Jung, Shou-Jiang Gao
While glutamine is a nonessential amino acid that can be synthesized from glucose, some cancer cells primarily depend on glutamine for their growth, proliferation, and survival. Numerous types of cancer also depend on asparagine for cell proliferation. The underlying mechanisms of the glutamine and asparagine requirement in cancer cells in different contexts remain unclear. In this study, we show that the oncogenic virus Kaposi's sarcoma-associated herpesvirus (KSHV) accelerates the glutamine metabolism of glucose-independent proliferation of cancer cells by upregulating the expression of numerous critical enzymes, including glutaminase 2 (GLS2), glutamate dehydrogenase 1 (GLUD1), and glutamic-oxaloacetic transaminase 2 (GOT2), to support cell proliferation...
August 15, 2017: MBio
https://www.readbyqxmd.com/read/28797451/post-operative-therapy-following-transoral-robotic-surgery-for-unknown-primary-cancers-of-the-head-and-neck
#5
Sapna A Patel, Aarthi Parvathaneni, Upendra Parvathaneni, Jeffrey J Houlton, Ron J Karni, Jay J Liao, Neal D Futran, Eduardo Méndez
OBJECTIVES: Our primary objective is to describe the post- operative management in patients with an unknown primary squamous cell carcinoma of the head and neck (HNSCC) treated with trans-oral robotic surgery (TORS). MATERIALS & METHODS: We conducted a retrospective multi-institutional case series including all patients diagnosed with an unknown primary HNSCC who underwent TORS to identify the primary site from January 1, 2010 to June 30, 2016. We excluded those with recurrent disease, ≤6months of follow up from TORS, previous history of radiation therapy (RT) to the head and neck, or evidence of primary tumor site based on previous biopsies...
September 2017: Oral Oncology
https://www.readbyqxmd.com/read/28772167/glycogen-synthase-kinase-3-inhibition-sensitizes-human-induced-pluripotent-stem-cells-to-thiol-containing-antioxidants-induced-apoptosis
#6
Chengyi Tu, Robert Xu, Meghana Koleti, Janet Zoldan
Inhibition of glycogen synthase kinase 3 (GSK3) is an extensively used strategy to activate Wnt pathway for pluripotent stem cell (PSC) differentiation. However, the effects of such inhibition on PSCs, besides upregulating the Wnt pathway, have rarely been investigated despite that GSK3 is broadly involved in other cellular activities such as insulin signaling and cell growth/survival regulation. Here we describe a previously unknown synergistic effect between GSK3 inhibition (e.g., Chir99021 and LY2090314) and various normally non-toxic thiol-containing antioxidants (e...
July 22, 2017: Stem Cell Research
https://www.readbyqxmd.com/read/28770976/non-steroidal-anti-inflammatory-drugs-nsaids-for-chronic-non-cancer-pain-in-children-and-adolescents
#7
REVIEW
Christopher Eccleston, Tess E Cooper, Emma Fisher, Brian Anderson, Nick Mr Wilkinson
BACKGROUND: Pain is a common feature of childhood and adolescence around the world, and for many young people, that pain is chronic. The World Health Organization guidelines for pharmacological treatments for children's persisting pain acknowledge that pain in children is a major public health concern of high significance in most parts of the world. While in the past pain was largely dismissed and was frequently left untreated, views on children's pain have changed over time, and relief of pain is now seen as important...
August 2, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28760152/randomized-controlled-trial-of-s-1-maintenance-therapy%C3%A2-in-metastatic-esophagogastric-cancer-the-multinational-mateo-study
#8
Georg-Martin Haag, Gertraud Stocker, Julia Quidde, Dirk Jaeger, Florian Lordick
BACKGROUND: The optimal duration of firstline chemotherapy in metastatic esophagogastric cancer is unknown. In most clinical trials therapy was given until tumour progression or limiting toxicity. Maintenance concepts aiming to prolong the duration of response and maintain quality of life have been established in other tumour types but not in esophagogastric cancer. S-1 is an oral fluoropyrimidine with proven efficacy in metastatic esophagogastric cancer. METHODS: The Maintenance Teysuno® (S-1) in esophagogastric cancer (MATEO) trial is a multinational, randomized phase II study that explores the role of S-1 maintenance therapy in Her-2 negative, advanced esophagogastric adenocarcinoma...
July 31, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28748105/a-feasibility-study-of-the-mini-after-telephone-intervention-for-the-management-of-fear-of-recurrence-in-breast-cancer-survivors-a-mixed-methods-study-protocol
#9
Susanne Cruickshank, Emma Steel, Deborah Fenlon, Jo Armes, Karen Scanlon, Elspeth Banks, Gerald Humphris
BACKGROUND: Fear of recurrence (FoR) is a major concern for patients following treatment for primary breast cancer, affecting 60-99% of breast cancer survivors. Mini-AFTER is a brief intervention developed to address this fear, that breast care nurses are ideally placed to deliver. However, their interest in delivering such an intervention is unknown and crucial to its introduction. This study aims to assess the perceived feasibility of the Mini-AFTER telephone intervention for implementation by breast care nurses to manage moderate levels of fear of recurrence among breast cancer survivors...
2018: Pilot and Feasibility Studies
https://www.readbyqxmd.com/read/28747561/mir-133b-suppresses-metastasis-by-targeting-hoxa9-in-human-colorectal-cancer
#10
Xiao Wang, Juyuan Bu, Xingwei Liu, Wenfeng Wang, Weihua Mai, Baojun Lv, Jinlin Zou, Xiangqiong Mo, Xiaoling Li, Jingyu Wang, Bin Niu, Yunping Fan, Bingzong Hou
Functions and mechanisms of microRNA (miRNA) involved in colorectal cancer (CRC) metastasis are largely unknown. Here, a miRNA microarray analysis was performed in CRC primary tissues and metastatic hepatic tissues to disclose crucial miRNA involved in CRC metastasis. MiR-133b was decreased and negatively correlated with metastasis in CRC. Overexpression of miR-133b significantly suppressed metastasis of CRC in vitro and in vivo. HOXA9 was identified as a direct and functional target of miR-133b. In addition, HOXA9 was negatively correlated with miR-133b and promoted CRC malignant progress...
July 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/28746718/association-of-incident-amelanotic-melanoma-with-phenotypic-characteristics-mc1r-status-and-prior-amelanotic-melanoma
#11
Steven Vernali, Weston T Waxweiler, Patrick M Dillon, Peter A Kanetsky, Irene Orlow, Li Luo, Klaus J Busam, Anne Kricker, Bruce K Armstrong, Hoda Anton-Culver, Stephen B Gruber, Richard P Gallagher, Roberto Zanetti, Stefano Rosso, Lidia Sacchetto, Terence Dwyer, Anne E Cust, David W Ollila, Colin B Begg, Marianne Berwick, Nancy E Thomas
Importance: We previously reported that survival is poorer from histopathologically amelanotic than pigmented melanoma because of more advanced stage at diagnosis. Identifying patients at risk of amelanotic melanoma might enable earlier diagnosis and improved survival; however, the phenotypic characteristics and underlying genetics associated with amelanotic melanoma are unknown. Objective: To determine whether phenotypic characteristics, carriage of MC1R variants, and history of amelanotic melanoma are associated with histopathologically amelanotic melanoma...
July 26, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28745907/role-of-fdg-pet-ct-scan-in-head-and-neck-cancer-patients
#12
Mehrdad Bakhshayesh Karam, Abtin Doroudinia, Ali Safavi Nainee, Fatemeh Kaghazchi, Abbas Yousefi Koma, Payam Mehrian, Farahnaz Agha Hossein
INTRODUCTION: PET/CT scan has an emerging role in head and neck oncology with a few well-established indications, including: detection of unknown primary tumor site, tumor staging, radiotherapy planning, treatment response assessment and detection of recurrent disease. The purpose of this study is reporting PET/CT findings in head and neck cancer patients to emphasize its role in head and neck oncology. MATERIALS AND METHODS: In a retrospective study, we reviewed our PET/CT database and found 94 patients with primary head and neck cancer...
July 2017: Archives of Iranian Medicine
https://www.readbyqxmd.com/read/28744752/radiotherapy-for-ductal-carcinoma-in-situ-and-risk-of-second-non-breast-cancers
#13
Diana R Withrow, Lindsay M Morton, Rochelle E Curtis, Sara J Schonfeld, Amy Berrington de González
PURPOSE: Radiotherapy for ductal carcinoma (DCIS) is increasing, but the risks and benefits of the treatment remain uncertain. We aimed to investigate the relationship between radiotherapy for DCIS and risk of second non-breast cancers in a large US cohort. METHODS: We conducted a retrospective cohort study of 52,556 women in 12 U.S. population-based cancer registries diagnosed with first primary DCIS during 1992-2008 at age 25-79 years. We estimated relative risks (RRs), attributable risks (AR), and excess absolute risks (EAR) of second non-breast cancers associated with radiotherapy using Poisson regression adjusted for age at year of diagnosis, grade, hormonal therapy (yes/no or unknown), and time since diagnosis...
July 25, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28742687/the-allosteric-hemoglobin-effector-itpp-inhibits-metastatic-colon-cancer-in-mice
#14
Perparim Limani, Michael Linecker, Marcel A Schneider, Philipp Kron, Christoph Tschuor, Ekaterina Kachaylo, Udo Ungethuem, Claude Nicolau, Jean-Marie Lehn, Rolf Graf, Bostjan Humar, Pierre-Alain Clavien
OBJECTIVE: To test the effects of enhanced intracellular oxygen contents on the metastatic potential of colon cancer. BACKGROUND: Colorectal cancer is the commonest gastrointestinal carcinoma. Distant metastases occur in half of patients and are responsible for most cancer-related deaths. Tumor hypoxia is central to the pathogenesis of metastases. Myo-Inositoltrispyrophosphate (ITPP), a nontoxic, antihypoxic compound, has recently shown significant benefits in experimental cancer, particularly when combined with standard chemotherapy...
July 24, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28741662/molecular-breakdown-a-comprehensive-view-of-anaplastic-lymphoma-kinase-alk-rearranged-non-small-cell-lung-cancer
#15
Ka-Won Noh, Mi-Sook Lee, Seung Eun Lee, Ji-Young Song, Hyun-Tae Shin, Yu Jin Kim, Doo Yi Oh, Kyungsoo Jung, Minjung Sung, Mingi Kim, Sungbin An, Joungho Han, Young Mog Shim, Jae Ill Zo, Jhingook Kim, Woong-Yang Park, Se-Hoon Lee, Yoon-La Choi
Most anaplastic lymphoma kinase (ALK)-rearranged non-small cell lung cancers (NSCLCs) show good clinical response to ALK inhibitors. However, some ALK-rearranged NSCLC patients show various primary responses with unknown reasons. Previous studies focused on the clinical aspects of ALK fusions in small cohorts, or were conducted in vitro and/or in vivo to investigate the function of ALK. One of the suggested theories describes how Echinoderm microtubule-associated protein-like 4 (EML4)-ALK variants play a role towards different sensitivities in ALK inhibitors...
July 25, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/28730323/the-pathogenesis-diagnosis-and-management-of-metastatic-tumors-to-the-ovary-a-comprehensive-review
#16
REVIEW
Ondřej Kubeček, Jan Laco, Jiří Špaček, Jiří Petera, Jindřich Kopecký, Alena Kubečková, Stanislav Filip
Secondary tumors of the ovary account for 10-25% of all ovarian malignancies. The most common tumors that give rise to ovarian metastases include breast, colorectal, endometrial, stomach, and appendix cancer. The correct diagnosis of secondary ovarian tumors may be challenging as they are not infrequently misdiagnosed as primary ovarian cancer, particularly in the case of mucinous adenocarcinomas. The distinction from the latter is essential, as it requires different treatment. Immunohistochemistry plays an important role in distinguishing primary ovarian tumors from extra-ovarian metastases and, furthermore, may suggest the primary tumor site...
July 20, 2017: Clinical & Experimental Metastasis
https://www.readbyqxmd.com/read/28725937/aspirin-use-and-head-and-neck-cancer-survival-an-observational-study-of-11-623-person-years-follow-up
#17
Shin-Ae Kim, Jong-Lyel Roh, Sung-Bae Kim, Seung-Ho Choi, Soon Yuhl Nam, Sang Yoon Kim
BACKGROUND: Acetylsalicylic acid (aspirin) and non-steroidal anti-inflammatory drugs (NSAIDs) have been associated with reduced risks for certain human cancers. However, the effects of aspirin and NSAIDs on head and neck squamous cell carcinoma (HNSCC) remain controversial, and the prognostic effects of these drugs in patients with HNSCC are largely unknown. This study examined the clinical impact of aspirin and NSAIDs on disease recurrence and survival in patients with HNSCC. METHODS: This study analysed a cohort of 1392 consecutive patients who received definitive treatment for previously untreated HNSCC at our tertiary referral center...
July 19, 2017: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28724664/biochemical-molecular-and-clinical-characterization-of-succinate-dehydrogenase-subunit-a-variants-of-unknown-significance
#18
Amber E Bannon, Jason D Kent, Isaac Forquer, Ajia Town, Lillian R Klug, Kelly E McCann, Carol Beadling, Olivier Harismendy, Jason K Sicklick, Christopher L Corless, Ujwal Shinde, Michael C Heinrich
Patients who inherit a pathogenic loss-of-function genetic variant involving one of the four succinate dehydrogenase (SDH) subunit genes have up to an 86% chance of developing one or more cancers by the age of 50. If tumors are identified and removed early in these high-risk patients, they have a higher potential for cure.  Unfortunately, many alterations identified in these genes are variants of unknown significance (VUS), confounding the identification of high-risk patients. If we could identify misclassified SDH VUS as benign or pathogenic SDH mutations, we could better select patients for cancer screening procedures and remove tumors at earlier stages...
July 19, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28724614/nuclear-mtor-acts-as-a-transcriptional-integrator-of-the-androgen-signaling-pathway-in-prostate-cancer
#19
Étienne Audet-Walsh, Catherine R Dufour, Tracey Yee, Fatima Z Zouanat, Ming Yan, Georges Kalloghlian, Mathieu Vernier, Maxime Caron, Guillaume Bourque, Eleonora Scarlata, Lucie Hamel, Fadi Brimo, Armen G Aprikian, Jacques Lapointe, Simone Chevalier, Vincent Giguère
Androgen receptor (AR) signaling reprograms cellular metabolism to support prostate cancer (PCa) growth and survival. Another key regulator of cellular metabolism is mTOR, a kinase found in diverse protein complexes and cellular localizations, including the nucleus. However, whether nuclear mTOR plays a role in PCa progression and participates in direct transcriptional cross-talk with the AR is unknown. Here, via the intersection of gene expression, genomic, and metabolic studies, we reveal the existence of a nuclear mTOR-AR transcriptional axis integral to the metabolic rewiring of PCa cells...
July 19, 2017: Genes & Development
https://www.readbyqxmd.com/read/28720841/novel-immunohistochemistry-based-signatures-to-predict-metastatic-site-of-triple-negative-breast-cancers
#20
Sergey Klimov, Padmashree Cg Rida, Mohammed A Aleskandarany, Andrew R Green, Ian O Ellis, Emiel Am Janssen, Emad A Rakha, Ritu Aneja
BACKGROUND: Although distant metastasis (DM) in breast cancer (BC) is the most lethal form of recurrence and the most common underlying cause of cancer related deaths, the outcome following the development of DM is related to the site of metastasis. Triple negative BC (TNBC) is an aggressive form of BC characterised by early recurrences and high mortality. Athough multiple variables can be used to predict the risk of metastasis, few markers can predict the specific site of metastasis...
July 18, 2017: British Journal of Cancer
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